GB1183241A - Two-speed Turntable for a Phonograph - Google Patents

Two-speed Turntable for a Phonograph

Info

Publication number
GB1183241A
GB1183241A GB29203/67A GB2920367A GB1183241A GB 1183241 A GB1183241 A GB 1183241A GB 29203/67 A GB29203/67 A GB 29203/67A GB 2920367 A GB2920367 A GB 2920367A GB 1183241 A GB1183241 A GB 1183241A
Authority
GB
United Kingdom
Prior art keywords
spindle
record
small
june
retracted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29203/67A
Inventor
Robert Sherman Tuttle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wurlitzer Co
Original Assignee
Wurlitzer Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wurlitzer Co filed Critical Wurlitzer Co
Publication of GB1183241A publication Critical patent/GB1183241A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/26—Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor
    • G11B19/265—Friction wheel drive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

1,183,241. Gramophones. WURLITZER CO. 23 June, 1967 [30 June, 1966], No. 29203/67. Heading G5R. A gramophone turntable assembly for records of different sized centre-hole has a large spindle 106 arranged to be unlatched and retracted from its normally extended position when a small centre hole record is placed over a small spindle 140. The assembly forms part of a two-speed, coin-operated juke box and is pivoted 70, Fig. 2, for movement on rollers across the base 20 to assist record changing via transfer arm under control of conventional mechanisms 30, 42. A small centre hole record placed over spindle 140 engages shoulder 154 to lower the spindle against restoring spring 142 whereby latch members 172 are retracted by springs 176, and spring 210 causes tube 80, to which the large spindle is attached, to be lowered within casing 100, leaving only spindle 140 prominent. A rod 134 is also lowered to operate speed-change switch 230 which causes pulley 54 to be axially shifted relative to stepped capstan 58. At the end of the record, a conventional trip mechanism is operated to rotate a cam (30, Fig. 3, not shown) causing lever 250 to raise the spindles whereupon spindle portion 158 cams the latches outwardly to the original latched position. The turntable is screwed atop the casing 100 for rotation therewith in bearings 72.
GB29203/67A 1966-06-30 1967-06-23 Two-speed Turntable for a Phonograph Expired GB1183241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56176866A 1966-06-30 1966-06-30

Publications (1)

Publication Number Publication Date
GB1183241A true GB1183241A (en) 1970-03-04

Family

ID=24243375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29203/67A Expired GB1183241A (en) 1966-06-30 1967-06-23 Two-speed Turntable for a Phonograph

Country Status (2)

Country Link
US (1) US3455560A (en)
GB (1) GB1183241A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754445A (en) * 1985-10-28 1988-06-28 Litton Industrial Automation Systems, Inc. Optical disc auto-changer
GB2560880A (en) * 2017-03-09 2018-10-03 Sound Leisure Ltd An apparatus for changing a record, a method of loading a record and a method of changing the side of a record to be played

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673089A (en) * 1949-03-08 1954-03-23 Wurlitzer Co Automatic phonograph for two-speed records
US2762627A (en) * 1951-03-31 1956-09-11 Rca Corp Phonograph turntable
US3034795A (en) * 1958-03-05 1962-05-15 Birmingham Sound Reproducers Adaptor for use with disc talking machines

Also Published As

Publication number Publication date
US3455560A (en) 1969-07-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee